| http://www.w3.org/ns/prov#value | - Immunosuppressive agents such as those identified above are also particularly preferred materials for the bioactive material of the layer 18 when the structure 12 is configured as a vascular stent. [0068] Still with reference to FIG. 1, the device 10 of the present invention also comprises at least one porous layer 20 posited over the layer 18 of bioactive material and the bioactive-material-free
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